40 HP Rotary Screw Air Compressors

Kaeser's 40 HP Screw Compressor Models

Standard 40 HP Air Compressor

Kaeser's 40 hp rotary screw compressors with direct drive incorporate all standard Kaeser features, such as powder-coated enclosures, premium efficiency TEFC motors, and the SIGMA PROFILE airend. These units are available with integrated dryers and/or variable speed drive options.

40 HP Air Compressors with Integrated Dryers

BSD 40T - 40 hp screw compressor with dryer

The ASD 40ST, ASD 40T, and BSD 40T are rotary screw compressors with integrated refrigerated dryers sized for the full flow of the compressor. The dryer is located in a separate cabinet so it is not exposed to preheated air or contaminants from the compressor package.

Energy-Saving Control:

The integrated refrigerated dryer in "T” units provides high efficiency performance thanks to its energy saving control. The dryer is active only when compressed air actually needs to be dried. This approach achieves the required compressed air quality with maximum efficiency.

Eco-Drain:

The integrated refrigerated dryer also features a zero loss Eco-Drain. The advanced level-controlled condensate drain eliminates the compressed air losses associated with solenoid valve control. This saves energy and considerably enhances the reliability of the compressed air supply.

Climate-Friendly Design:

In addition to energy-saving controls, our integrated dryers feature the new R-513A refrigerant with 56% lower global warming potential than common dryer refrigerants. Combined with our advanced heat exchanger design, we need only half the refrigerant — resulting in the most climate-friendly dryer possible.

40HP Rotary Screw Compressor with Variable Speed Drive

SFC 30S - 40 hp screw compressor with variable speed drive

The SFC 30S and SFC 30 40-hp rotary screw compressors are the perfect solution for smaller compressed air systems with varying air demand to achieve significant energy savings while maintaining stable pressure. KAESER SFC units are up to 25% more efficient than the competition. Both units are available with an integrated dryer. Learn more about Kaeser's SFC series of compressors with variable speed drive.

A variable speed screw compressor should be the most frequently loaded unit in a properly designed system. Each is optimized to deliver significantly more air with lower kW than comparable compressors.

AIRCENTER DUPLEX

The 40-hp AIRCENTER DUPLEX includes two 20-hp rotary screw compressors mounted on a horizontal receiver tank with a refrigerated SECOTEC dryer, or two 20-hp compressors with integrated dryers mounted on two receiver tanks.

TECHNICAL SPECIFICATIONS

40 hp Screw Compressors: ASD Series

Direct-Drive Units

Model	Flow (cfm)			Dimensions W x D x H (in)	Weight (lb)	Noise level (dB(A))
Model	125 psig	175 psig	217 psig	Dimensions W x D x H (in)	Weight (lb)	Noise level (dB(A))
ASD 40S	163	126	105	58 x 35 x 60	1540	67
ASD 40ST	163	126	105	70 x 35 x 60	1750	67
ASD 40	192	159	122	58 x 35 x 60	1570	69
ASD 40T	192	159	122	70 x 35 x 60	1779	69

Super silenced with vibration-dampening
All panels powder-coated
Two-stage, 1 micron air intake filter
Integral moisture separator with zero-loss Eco-Drain
Electronic Thermal Management (ETM) system
3-stage fluid separation system

40 hp Screw Compressors: BSD Series

Direct-Drive Units

Model	Flow (cfm)			Dimensions W x D x H (in)	Weight (lb)	Noise level (dB(A))
Model	125 psig	175 psig	217 psig	Dimensions W x D x H (in)	Weight (lb)	Noise level (dB(A))
BSD 40	196	161	n/a	63 x 41 x 67	2072	72
BSD 40T	196	161	n/a	78 x 41 x 67	2359	72

Generously sized doors fully swing out or are easily removable
SIGMA CONTROL 2 signals when PM is due
Easy access inlet filter requires no special tools for servicing
Eco-friendly fluid filter element safe for thermal disposal
External drive motor grease fittings
Double vibration isolation ensures wiring and fluid connections stay tight
Coolers are easily cleaned
Fluid fill port conveniently placed
Fluid level easy to check
Separator design allows fast, complete fluid changes

40 hp Screw Compressors: SFC Series

40 hp compressors with variable speed drive - SFC 30S-SFC 30ST

Model	Flow (cfm)			Dimensions W x D x H (in)	Weight (lb)	Noise level (dB(A))
Model	125 psig	175 psig	217 psig	Dimensions W x D x H (in)	Weight (lb)	Noise level (dB(A))
SFC 30S	37-176*	34-145*	n/a	61 x 35 x 60	1669	69
SFC 30ST	37-176*	34-145*	n/a	73 x 35 x 60	1878	69
SFC 30	49-208*	34-154*	32-132*	61 x 35 x 60	1753	70
SFC 30T	49-208*	34-154*	32-132*	73 x 35 x 60	1962	70

* Min and max flow range

40 hp compressors with variable speed drive - SFC 30-SFC 30T

40 hp Screw Compressors: AIRCENTER DUPLEX

Model	Flow (cfm)			Dimensions W x D x H (in)	Weight (lb)	Noise level (dB(A))
Model	125 psig	160 psig	217 psig	Dimensions W x D x H (in)	Weight (lb)	Noise level (dB(A))
AIRCENTER DUPLEX SK 20 (SECOTEC)	176	155	130	85 x 79 x 75	2848	68
AIRCENTER DUPLEX SK 20T	176	155	130	88 x 79 x 75	3026	68

Why Choose a KAESER 40 HP Rotary Screw Compressor?

Kaeser's 40-hp rotary screw air compressors provide outstanding efficiency and reliability. Featuring an energy-saving SIGMA PROFILE airend and a SIGMA CONTROL 2 controller, these compressors are designed to meet and exceed our customers' expectations, outperforming and outlasting other compressor solutions on the market.

Service-Friendly Compressor Design

From the ground up, these compressors have been designed with the user in mind. Fewer wearing parts and using premium quality materials ensure reduced maintenance requirements, longer service intervals, and extended service life. A smarter component layout with generously sized maintenance doors simplify service and lower your operating costs.

Guaranteed Efficiency

In our comprehensive design approach, KAESER chooses the components that work together in the most energy efficient way possible. Each and every component—from inlet filter to discharge flange—has been carefully selected with performance in mind. In fact, the ASD and BSD series are more efficient than the competition. With KAESER’s superior integrated controls, we guarantee an efficient system with lower operating costs, however small or large your demand may be.

Rugged Reliability

KAESER’s screw compressors meet our rigorous “built for a lifetime” standard. Designed and built with KAESER’s generations of compressed air experience, you can rest assured that these 40 hp compressors will continue to deliver the air you need with the exceptional reliability you expect from a KAESER compressor.

SIGMA Control 2: An Intelligent Compressor Control System

Traffic-light LEDs for at-a-glance operational status
Easy-to-read display with 30 selectable languages
Soft-touch icon buttons
Fully-automatic monitoring and control
Dual, Quadro, Vario and Mono control modes available as standard
Interfaces: Ethernet
Additional optional communication modules for: Profibus DP, Modbus, Profinet and DeviceNet
SD card slot for data logging and updates
RFID reader
Web server

Contact KAESER For Your Compressed Air Questions

kaeser compressors representatives help to answer any compressed air questions

Whether you have simple questions regarding your compressed air requirements or require custom solutions, our team is always available to answer your questions.